\doxysection{arm\+\_\+biquad\+\_\+casd\+\_\+df1\+\_\+inst\+\_\+q15 Struct Reference}
\hypertarget{structarm__biquad__casd__df1__inst__q15}{}\label{structarm__biquad__casd__df1__inst__q15}\index{arm\_biquad\_casd\_df1\_inst\_q15@{arm\_biquad\_casd\_df1\_inst\_q15}}


Instance structure for the Q15 Biquad cascade filter.  




{\ttfamily \#include $<$arm\+\_\+math.\+h$>$}

\doxysubsubsection*{Public Attributes}
\begin{DoxyCompactItemize}
\item 
int8\+\_\+t \mbox{\hyperlink{structarm__biquad__casd__df1__inst__q15_ad6d95e70abcf4ff1300181415ad92153}{num\+Stages}}
\item 
q15\+\_\+t \texorpdfstring{$\ast$}{*} \mbox{\hyperlink{structarm__biquad__casd__df1__inst__q15_a314db3f29046fd404ed89fc638ef3e54}{p\+State}}
\item 
const q15\+\_\+t \texorpdfstring{$\ast$}{*} \mbox{\hyperlink{structarm__biquad__casd__df1__inst__q15_a805f9364b254c18c1298d0fa441b9e45}{p\+Coeffs}}
\item 
int8\+\_\+t \mbox{\hyperlink{structarm__biquad__casd__df1__inst__q15_ada7e9d6269e6ed4eacf8f68729e9832d}{post\+Shift}}
\end{DoxyCompactItemize}


\doxysubsection{Detailed Description}
Instance structure for the Q15 Biquad cascade filter. 

\label{doc-variable-members}
\Hypertarget{structarm__biquad__casd__df1__inst__q15_doc-variable-members}
\doxysubsection{Member Data Documentation}
\Hypertarget{structarm__biquad__casd__df1__inst__q15_ad6d95e70abcf4ff1300181415ad92153}\index{arm\_biquad\_casd\_df1\_inst\_q15@{arm\_biquad\_casd\_df1\_inst\_q15}!numStages@{numStages}}
\index{numStages@{numStages}!arm\_biquad\_casd\_df1\_inst\_q15@{arm\_biquad\_casd\_df1\_inst\_q15}}
\doxysubsubsection{\texorpdfstring{numStages}{numStages}}
{\footnotesize\ttfamily \label{structarm__biquad__casd__df1__inst__q15_ad6d95e70abcf4ff1300181415ad92153} 
int8\+\_\+t arm\+\_\+biquad\+\_\+casd\+\_\+df1\+\_\+inst\+\_\+q15\+::num\+Stages}

number of 2nd order stages in the filter. Overall order is 2\texorpdfstring{$\ast$}{*}num\+Stages. \Hypertarget{structarm__biquad__casd__df1__inst__q15_a805f9364b254c18c1298d0fa441b9e45}\index{arm\_biquad\_casd\_df1\_inst\_q15@{arm\_biquad\_casd\_df1\_inst\_q15}!pCoeffs@{pCoeffs}}
\index{pCoeffs@{pCoeffs}!arm\_biquad\_casd\_df1\_inst\_q15@{arm\_biquad\_casd\_df1\_inst\_q15}}
\doxysubsubsection{\texorpdfstring{pCoeffs}{pCoeffs}}
{\footnotesize\ttfamily \label{structarm__biquad__casd__df1__inst__q15_a805f9364b254c18c1298d0fa441b9e45} 
const q15\+\_\+t \texorpdfstring{$\ast$}{*} arm\+\_\+biquad\+\_\+casd\+\_\+df1\+\_\+inst\+\_\+q15\+::p\+Coeffs}

Points to the array of coefficients. The array is of length 5\texorpdfstring{$\ast$}{*}num\+Stages. \Hypertarget{structarm__biquad__casd__df1__inst__q15_ada7e9d6269e6ed4eacf8f68729e9832d}\index{arm\_biquad\_casd\_df1\_inst\_q15@{arm\_biquad\_casd\_df1\_inst\_q15}!postShift@{postShift}}
\index{postShift@{postShift}!arm\_biquad\_casd\_df1\_inst\_q15@{arm\_biquad\_casd\_df1\_inst\_q15}}
\doxysubsubsection{\texorpdfstring{postShift}{postShift}}
{\footnotesize\ttfamily \label{structarm__biquad__casd__df1__inst__q15_ada7e9d6269e6ed4eacf8f68729e9832d} 
int8\+\_\+t arm\+\_\+biquad\+\_\+casd\+\_\+df1\+\_\+inst\+\_\+q15\+::post\+Shift}

Additional shift, in bits, applied to each output sample. \Hypertarget{structarm__biquad__casd__df1__inst__q15_a314db3f29046fd404ed89fc638ef3e54}\index{arm\_biquad\_casd\_df1\_inst\_q15@{arm\_biquad\_casd\_df1\_inst\_q15}!pState@{pState}}
\index{pState@{pState}!arm\_biquad\_casd\_df1\_inst\_q15@{arm\_biquad\_casd\_df1\_inst\_q15}}
\doxysubsubsection{\texorpdfstring{pState}{pState}}
{\footnotesize\ttfamily \label{structarm__biquad__casd__df1__inst__q15_a314db3f29046fd404ed89fc638ef3e54} 
q15\+\_\+t \texorpdfstring{$\ast$}{*} arm\+\_\+biquad\+\_\+casd\+\_\+df1\+\_\+inst\+\_\+q15\+::p\+State}

Points to the array of state coefficients. The array is of length 4\texorpdfstring{$\ast$}{*}num\+Stages. 

The documentation for this struct was generated from the following files\+:\begin{DoxyCompactItemize}
\item 
C\+:/\+Users/\+ASUS/\+Desktop/dm-\/ctrl\+H7-\/balance-\/9025test/\+Middlewares/\+ST/\+ARM/\+DSP/\+Inc/arm\+\_\+math.\+h\item 
C\+:/\+Users/\+ASUS/\+Desktop/dm-\/ctrl\+H7-\/balance-\/9025test/\+Middlewares/\+ST/\+ARM/\+DSP/\+Include/dsp/filtering\+\_\+functions.\+h\end{DoxyCompactItemize}
